Is it possible to add a new scene in the game using remote config?
Remote Config doesn’t stream assets. Remote Config would allow you to determine which scenes or levels to unlock though, but they already need to be built into your game binary. When your game starts, it could read a remote config variable setting, and then decide which levels to unlock based on the setting, for example, or which scenes to make available.
So can you advice me on how I can make a dynamic AR app with a CMS of targets and streaming assets to display and able to update the app without requesting the user to download the new version (user gets updates by only SYNCH). I am already familiar with Unity/Vuforia but for static apps.
Sorry, I would not be familiar. I might recommend that you post here https://forum.unity.com/forums/ar.161/